Here is the pdf file. Thanks, Shilpa Sodani.
From: aalva...@aliensoft.net
Date: Mon, 9 May 2011 18:03:51 -0400
To: mira-development@lists.sourceforge.net
Subject: Re: [Mira-development] Design draft for Network message with google
protocol buffer
Hello Shilpa,
Could you resend this as a pdf file please?
On Fri, May 6, 2011 at 3:49 PM, Shilpa Sodani <sa_sod...@hotmail.com> wrote:
Hello Alan,
Thank you for the feed back and clarifying some the messages. Please see
attached file for the updated GPB message.
Option1 in the file has different data type for each type of message. Option2
is the original design with one change of not having
list as separate message type. We can do the same by using GPB's repeated
field option.
Thanks,
Shilpa Sodani.
From: aalva...@aliensoft.net
Date: Mon, 2 May 2011 23:10:13 -0400
To: mira-development@lists.sourceforge.net
Subject: Re: [Mira-development] Design draft for Network message with google
protocol buffer
Hello Shilpa,
On Fri, Apr 29, 2011 at 9:25 PM, Shilpa Sodani <sa_sod...@hotmail.com> wrote:
Hello all,
Here is the network message design draft with Google Protocol Buffer (GPB).
Currently we have network messages of format:
Token Parameters [0 or more separates by space; if the parameter have space
then they are enclosed in double quotes]
Parameters can be categories as follow:
1. string
2. integer (eg: id, time-stamp)
3. list (eg: Q <USERS|GROUPS> <Field1,Field2,Field3,...|*>
[Field1=Value1,Field2=Value2,Field3=Value3,etc...] )
4. binary (new parameter type)
I have a question regarding following message:
ML <workplace> username1:n, username2:f
does it means this
ML <workplace> <username1:n, username2:f>
Yes, it does. This is a member list. The extra character is to identify the
current user status (online, offline, etc..)
Or this
ML <workplace> <username1:n> < username2:f>
Or something else.
Similarly question for messages,
UL <workplace> Utility1,Utility2
and
WL id:workplacename1,id:workplacename2
Same applies. These are utility and workplace lists.
Base on this information we can have network message structured in GPB way as,
For quick reference
required: a message must have exactly one of this field.
optional: a message can have zero or one of this field (but not more than one).
repeated: this field can be repeated any number of times (including zero). The
order of the repeated values will be preserved.
Message NetworkMsg
{
required string token = 1;
repeated Parameter parameter = 2;
Message Parameter
{
enum Type
{
INT_DATA = 1;
STR_DATA = 2;
BINARY_DATA = 3;
LIST_DATA = 4;
}
require Type type = 1;
optional int int_data = 2;
optional string str_data = 3;
Wouldn't it be better to create a different data type for each type of message?
optional bytes binary_data = 4;
optional string list_data = 5;
}
}
The GPB compiler will convert the message into c++ class (in this case nested
class) with many accessor methods.
Having tokens and parameters as flields will make coding much easier; will not
have to deal with Split like function.
Please scrutinize the network message format and give your feedback.
Thanks,
Shilpa Sodani.
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